Regulating-hopper for conveyers.



J. W. BRAGSTAD. v REGEILATING HOPPER FOR GONVEYERS.

APPLICATION FILED APR. 16, 1912. 1,096, 149. Patented May 12, 1914.

WITNESSES y 7 INVENTOR UNITED. STATES PATENT OFFICE.

JOSEPH W. BBAGSTQA D, OF CANTON, SOUTH DAKOTA, ASSIGNOR TO BRAGSTAD CON-CRETE MACHINERY 00., INC., 0]? CANTON, SOUTH DAKOTA, A CORPORATION OFSOUTH DAKOTA.

REGULATING-HOPPER FOR CONVEYER S.

Original application filed December 16,

To all whom it may concern Be it known that I, J QSEPH V. BnAcs'riin, acitizen of the United States of America, residing at Canton, in thecounty of Lincoln and State of South Dakota, have invented certain newand useful Improvements in Regulating -Hoppers for Gonveyers, of whichthe following is a specification, reference being had therein to theaccompanying drawing.

This invent-ion relates to certain new and useful improvements inregulating hoppers for conveyers, such as are used in connection withconcrete mixing machines, and the present application is a division ofmy application, Serial No. 597,599, filed December 16th, 1910, forportable concrete mixing machines.

The invention has for itsobject to provide a hopper by means of whichthe quantities of the various materials delivered to the conveyer can hegraduated or regulated as may be desired.

The invention also aims to provide a hopper which can be readilyattached to and detached from the conveyer for convenience in handling,and to further provide means for the supplying of different materials tothe hopper independently.

With the above and other objects in view, the invention resides in thenovel construction, combination and arrangement of parts as will behereinafter more specifically described and then particularly claimed.

In describing the invention in detail, reference will be had to theaccompanying drawings forming a part of this specificatlon and whereinlike numerals of reference will be employed to designate like partsthroughout the difierent views, in which:

Figure 1 is a view in elevation of a conveyer with my improved hopperapplied in position thereon. Fi 2 is a front elevation of the same. Fig.'3 1s a transverse vertical sectional view of the hopper and of thecollecting receptacle of the conveyer on which the hopper is mounted.Fig. 4 is a horizontal sectional view on the line 4-4 of Fig. 3, and,Fig. 5 is a detached plan view of one of the controlling doors of thehopper.

The hopper is shown as'connected with a conveyer designated generally10, which conveyer is employed for carrying material to the concretemixer 11.

Specification of Letters Patent.

Patented May 12, 1914.

1910, Serial No. 597,599. Divided and this application filed April 16,1912. Serial No. 691,193.

The hopper is designated generally 12, and comprises inclined side wallswhich form the hopper body, and which at their lower ends terminate inand form a rectangular frame 14: that fits in the open top of acollecting receptacle 15 forming a part of the conveyer 10, and which isfully described in my co-pending application for improvement 111conveyer-s. The said hopper 1s provlded around its lower open end withangle flanges 16 which rest upon the top of the receptacle 15. Thehopper is provided with a dividing partition 17 that extends a c011-siderable distance above the upper edge of the walls 18 of the hopperand besides dividing the hopper into compartments 19 and 20respectively, constitutes a support for the screens 21'and 22. Thesescreens or lids each consist of a frame having a wire mesh body securedthereto, soas to prevent any material of larger size than that desiredentering the hopper, and also to permit of viewing the quantity ofmaterial within the hopper, screens of course being employed of the meshdesired. The lids are placed at reverse angles to each other so thatmaterial can be fed through the screens to both of the chambers 19 and20. g

It will be noted by reference to Fig. 3, that the inclinations of thescreens 21 and 22 are at markedly diiferent angles, the latter beingmuch sharper than the former: The object of this arrangement is best toadapt the screens to separate the material thrown upon them and insureeffective retention and discharge of any debris present.

The compartment 19 is designed to contain sand and the compartment 20cement. As will be apparent, sand, owing to its granular form, will passmore readily through a screen than cement, the latter being pulverulentand, thus' 'apt to pack and clog the meshes of the screen. Further,

sand can be screened in larger bulks than cement owing to thecharacteristic named. Recognizing the necessity of handling the twomaterials in difi'erent manners in order to secure their efiectivescreening, the arrangment shown has been adopted. By

having the sand screen of relatively large area and disposed on acomparatively slight incline, a large uantity of sand may be easilyscreened w ile by disposing the cement screen on a comparatively sharpincline, clogging of the meshes will be prevented and segregation anddischarge of debris assured.

Within the hopper near the open lower end thereof, are provided a seriesof guides for supporting the regulating doors by means of which thequantity of material fed from the hopper to the collecting receptacle 15is regulated. For this purpose, I provide guides 23, 24 on the oppositeside walls of the hopper, and I also provide guides 25, 26 on oppositesides of the partition 17, which guides 25 and 26 are in a plane withthe uides 23, 24. On the upper end of the divi 'ng partition 2'? of thecollectin "chamber 15, I provide a guide 28. One side of the hopper isprovided with slots through which are inserted the respectivecontrolling doors 29, and 31. The door 29 is supported by and works uponguides 23 and 28; the door 30 is supported by and works upon guides 26and 28, and the door 31 is supported by and Works upon guides 24 and 25.-Owing to the differences in the nature of the materials which are usedin concrete mixtures, the chamber 19 of the hopper is of materiallygreater capacity than the chamber 20. According to the character of thematerial, in chamber 19, either one of the doors 29 or 30 may be opened,or both of the doors, the openings controlled by these doors being ofvarying sizes to conform to the varying compartments in the conveyer, asillustrated in my companion applicatlon on the conveyer. The doors are1,oee, lac

provided on their outer ends with suitable handles or grips 32 forconvenience in operating.

The hopper is fitted in the open upper portion of the collectingreceptacle 15 and is supported by said receptacle, with the inclinedwall of the hopper that is adjacent to the chute resting on said chuteand this wall of the hopper is provided with suitable eyes as 33 toreceive hooks as 34 carried by the chute 10.

With the construction above described and as shown, it will be evidentthat the material fed to the collecting chamber may be regulated inquantities as may be desired, so as to deliver the desired quantity tothe collecting receptacle from whence it is conveyed by the carriers tothe mixing machine.

What I claim is The combination with a collecting receptacle, of aremovable hopper having'a depending flange fitting within the open endof said receptacle, vertical partitions secured to the interior of thehopper and removable therewith, said partitions being of such length asto extend to the bottom of said collecting receptacle, guides mounted onsaid partitions andthe hopper walls,"., and doors slidable on saidguides.

In testimony whereof I aflix my signature in the presence of twowitnesses.

JOSEPH w. BRAGSTAD.

Witnesses A. B. CARLSON, A. N. BRAGSTAD.

